HP Surestore 80fx Optical Drive and Library SCSI-2 Command Reference - Page 195

Table 3-5 Jukebox SCSI-2 Command Set Request Sense Command (03H) Request Sense Command (03H) This command determines the specific error condition when the library fails to successfully complete a command and returns a check condition status. (Sense data is preserved for the initiator until retrieved by a Request Sense Command or until the initiator sends another command.) Codes are used to represent the error condition and this information can be used to determine what type of error recovery procedure is appropriate. Request Sense Command CDB Byte 7 6 5 4 3 2 1 0 0 Operation Code (03H) 1 Logical Unit Number (0) Reserved (0) 2 Reserved (0) 3 Reserved (0) 4 Allocation Length 5 Control Byte (0) Allocation Length This field contains the number of data bytes to be returned. 3-8 Chapter 3